Lubricator.



No. 802,581. PATENTED OCT. 24, 1905. D. MOREHOUSE.

LUBRIGATOR.

APPLICATION FILED JAN. 30. 1905.

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DAVID MOREHOUSE, OF DELPHOS, OHIO.

LUBRICATOR.

Specification of Letters Patent.

Patented Oct. 24, 1905.

Application filed January 30,1905. Serial No- 2%,295.

To all whom it 'nutjl concern..-

Be it known that 1, DAVID MoRuHoUsn, a citizen of the United States, residing at Delphos, in the county of Allen and State of Ohio, have invented new and useful Improvements in Lubricators, of which the following is a specification.

This invention is an improven'lent in lubricators of that class having a force-feed and in which the follower is actuated by steam pressure from the boiler.

The invention is characterized by improvements with respect to the construction of the oil-cup and also with respect to a sight-feeding glass through which the oil drops.

The advantages of the invention will more fully appear from the following description and the accompanying drawing, which is a vertical section, partly in elevation, of the apparatus. I

Referring specifically to the drawing, 6 indicates a cylinder which is closed at both ends, the head 7 at one end being removable. This head has a filling-opening closed by aplug 8. Extendingbetween the two heads of the cylinder is a tube 9, which is screwed at the ends into combination-nuts 10, which screw into taps in the cylinder-heads made to receive them. The nuts 10 are hollow where they join the tube 9 and have lateral openings 11, which communicate, respectively, with oilpassages 12 and 13 in the cylinder-heads.

Slidable on the tube 9 is a follower 14, which is provided with suitable packing-rings and a gland to prevent any leakage between the same and the cylinder wall or tube. The space 15 below the follower 14 receives steampressure through the inlet-pipe 16. The

' space 16 above the follower 14 contains the oil. A coiled spring 17'serves to prevent slam of the follower against the cylinder-head if the steam should be turned on when the oilcompartment is empty. As the oil is fed out this spring contractsinto a seat 18, made in the cylinder-head 7, so that the follower may dislodge practically all the oil in the cup.

19 is a drip-cock in the bottom.

The passages 13 lead to the controlling and sight-feeding devices, now to be described. There may be as many of the latter as desired, two being shown in the drawing.

A valve-casing 20 has a passage 21 communicating with the passage 13, and a needlevalve 22 controls the amount of oil which flows between said passages.

23 indicates a tube which is connected by suitable fittings with the valve-casing, and this tube has a hole at, through which the flow of oil may be seen. The oil rises and drops from the point of a plug 25, which is screwed into the lower end of the tube.

26 indicates a globular glass which incloses the tube 23 and is clamped between two cupped socketpieces 27, which are respectively screwed onto the ends of said tube. Gaskets 28 are located between the glass and the socketpieces to prevent leakage. The spherical form of the glass is novel, and gives great strength as well as facility for making a tight joint by means of the socket-pieces and gaskets. At the upper end the tube 23 leads through a reducing connection 29 to the oilpipe 30, which goes to the main cylinder of the engine,or wherever the oil is desired.

The shape of the dropping-plug is novel and peculiar, in that the oil-passage therethrough opens laterally into grooves 25, which extend up the side of the plug to the point. a

It will be seen that by means of this invention there is no communication between the oil and steam chambers. Consequently there is no liability to injury from scalding, which frequently occurs in consequence of breakage of sight-filling or sight-feeding glasses. The globular glass also is practically unbreakable by pressure. The follower separates the steam and oil passages, and should the glass by any means be broken the steam will not escape.

In operation the steam-pressure behind the follower forces the oil through the passages 12 and into and down through the tube 9, whence it passes through the passages 18. This tube and these passages are subject to the heat of the steam, and consequently the liquid. condition of the lubricant or oil is maintained or increased. Therate of flow is read ily controlled by the needle-valve and is visible through the glass, the tube in which, as will be understood, is filled with water, resultting from condensation of steam, which finds its way back therein from the main cylinder or part of the engine to which the oil is supplied.

The sight device, including the tube surrounded by the globular glass, is capable of use otherwise than in the lubricator shown herein. For example, it can be used in other lubricators, in watergages, and otherwise where it is desired to see the height or flow of a liquid under pressure.

\Vhat I claim as new, and desire to secure by Letters Patent, is

1. In a lubricator, the combination of a cylinder having a tube extending therethrough from one head to the other, and secured at both ends to said heads, and a follower slidable on the tube and dividing the cylinder into oil and steam chambers, the tube having an inlet from the oil-chamber at one end and an outlet to the exterior at the other.

2. In a lubricator, the combination with a cylinder, of a follower which is slidable in the cylinder and divides the same into oil and steam chambers, and a tube extending through the cylinder and into the heads at opposite ends thereof, the head at one end of the cylinder having a passage connecting the tube and oil-chamber, and the head at the other end having a passage from the tube to the extenor.

3. In a lubricator, the combination with the cylinder having heads with oil-passages therein, of a tube extending through the cylinder between said heads, the hollow nuts tapped into said heads and screwed into the ends of 1 the said tube and having openings connecting said tube and passages, and a follower slidable in the cylinder on the tube.

t. A sight device for fluids under pressure, comprising a tube having a hole in the side thereof, a glass surrounding the tube, and packing and connecting devices at the ends of the tube and glass.

5. A globular sight-glass for fluids under pressure, having an opening therethrough, and socket-pieces and packing fitting the ends of the glass around the opening.

6. A sight device for fluids under pressure, comprising a tube having a hole in the side thereof, a globular glass through which the tube extends and socket-pieces screwed on opposite ends of the tube and against the glass.

In testimonywhereofIhave signed my name to this specification in the presence of two subscribing witnesses.

DAVID MOREHOUSE.

Witnesses:

LEWIS CLARK, D. P. McGILL. 

